ta8271hq TOSHIBA Semiconductor CORPORATION, ta8271hq Datasheet - Page 4

• Manufacturer Part Number: ta8271hq
• Description: Max Power 41 W Btl ? 4 Ch Audio Power Ic
• Manufacturer: TOSHIBA Semiconductor CORPORATION

3. Muting Function
ON/OFF.
µA ability.
I
MUTE (OFF)
By means of controlling pin 22 less than 0.5 V, it can make the audio muting condition.
The muting time constant is decided by R
The series resistance; R
The muting function have to be controlled by a transistor, FET and µ-COM port which has I
I (20 µA)
Figure 4 Muting Function
25
22
Stand-By
(pin 22)
V
CC
I
1
MUTE
R
must be set up less than 5 kΩ.
Small current capacity switch
1
Large current capacity switch
V
CC
V
MUTE
BATTERY
A
– Stand-by Switch Method –
BATTERY
– Conventional Method –
1
Figure 3
, C
4
4
and C
Figure 5 Mute Attenuation − V
8
−100
DIRECTLY FROM
MICROCOMPUTER
−10
−20
−30
−40
−50
−60
−70
−80
−90
and these parts is related the pop noise at power
0
1.2
V
Stand-By
CC
1.4
Point A voltage: V MUTE (V)
1.6
R 1 = 5 kΩ
V
RELAY
CC
ATT – V
1.8
R 1 = 2.2 kΩ
2.0
MUTE
FROM
MICROCOMPUTER
2.2
BATTERY
BATTERY
V CC = 13.2 V
P o = 10 W
R L = 4 Ω
f = 1 kHz
2.4
TA8271HQ
2.6
MUTE
2006-04-28
MUTE
2.8
(V)
> 50